Problems

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
0-1 Sequences	12599	2006	16%	0.00	2602	1392	53%	5.2
10 Kinds of People	28096	5690	20%	0.01	4856	3455	71%	5.4
2048	11145	5079	46%	0.00	4962	4209	85%	2.9
2, 4, 6, Greaaat	981	149	15%	0.15	115	48	42%	8.9
3D Printed Statues	15277	7026	46%	0.00	6621	5912	89%	2.2
3D Printer	1058	173	16%	0.00	449	132	29%	8.9
3-Sided Dice	2952	240	8%	0.00	486	168	35%	8.8
4 thought	13221	4560	34%	0.00	4337	3663	84%	2.7
A1 Paper	7014	2146	31%	0.00	2135	1706	80%	3.5
Aa	175	123	70%	0.01	49	34	69%	5.7 - 8.0
Aaah!	38075	17850	47%	0.00	16116	15037	93%	1.6
Abandoned Animal	2677	595	22%	0.03	688	503	73%	5.4
ABC	21510	9722	45%	0.00	9269	8391	91%	1.9
Ab Initio	2258	363	16%	0.08	312	194	62%	7.5
Above Average	13977	5803	42%	0.00	5600	5022	90%	2.1
A+B Problem	10304	1000	10%	0.03	1444	475	33%	8.4
A Brief Gerrymander	569	109	19%	0.11	104	50	48%	9.1
Abstract Art	469	155	33%	0.00	131	95	73%	6.5
Abstract Painting	1209	479	40%	0.00	424	342	81%	4.3
Absurdistan Roads II	710	238	34%	0.00	241	158	66%	7.1
Absurdistan Roads III	1875	534	28%	0.02	495	378	76%	5.6
Access Denied	1	1	100%	0.01	1	1	100%	5.5
Access Points	549	185	34%	0.01	177	137	77%	5.9
Accounting	2580	739	29%	0.01	612	438	72%	4.0
A Classy Problem	13182	3463	26%	0.01	3015	2359	78%	4.0
ACM Contest Scoring	8849	5512	62%	0.00	4931	4658	94%	1.6
Add 'Em Up!	2871	668	23%	0.01	697	493	71%	5.2
Adding Words	15282	3763	25%	0.00	3527	2766	78%	3.7
Add Two Numbers	6498	4235	65%	0.00	3981	3822	96%	1.3
A Different List Game	7612	527	7%	0.00	1016	195	19%	9.3
A Different Problem	42968	15827	37%	0.00	14498	12548	87%	2.5
Adjoin the Networks	2821	710	25%	0.00	616	489	79%	5.8
Administrative Difficulties	1905	405	21%	0.02	388	265	68%	6.3
Ads	908	96	11%	0.00	178	70	39%	5.4
Advanced Causal Measurements	129	41	32%	0.10	42	32	76%	7.5
Adventure Begins	374	119	32%	0.06	116	88	76%	6.0
Adventures in Moving -- Part IV	1831	405	22%	0.00	354	287	81%	5.1
A Favourable Ending	2212	589	27%	0.00	550	423	77%	4.6
A Feast For Cats	3743	1377	37%	0.00	1022	878	86%	3.6
A Flea on a Chessboard	1023	214	21%	0.01	212	151	71%	5.3
A Horse Shoe-In	129	13	10%	0.27	21	9	43%	9.2
AI Jeopardy	604	80	13%	0.02	80	52	65%	6.7
Air Conditioned Minions	7603	2253	30%	0.00	2250	1741	77%	3.7
Airline Hub	2386	527	22%	0.01	475	283	60%	6.7
Airport Coffee	1395	281	20%	0.04	264	184	70%	6.9
Airport Construction	3837	476	12%	0.02	423	223	53%	7.9
Airport Logistics	72	20	28%	0.00	26	19	73%	7.0
Airports	696	216	31%	0.11	188	140	74%	5.7
Air Rally	85	0	0%	--	11	0	0%	8.8
Akcija	11959	5233	44%	0.00	4490	4006	89%	2.3
Aladin	884	104	12%	0.10	145	33	23%	8.8
Alchemy	175	34	19%	0.02	45	24	53%	9.0
Alchemy 101	824	249	30%	0.05	201	160	80%	3.9
Alea iacta est	45	16	36%	0.19	20	15	75%	6.6
Alehouse	1099	409	37%	0.02	405	290	72%	5.2
Alex and Barb	1319	466	35%	0.00	540	423	78%	3.3
Alice in the Digital World	6277	1611	26%	0.01	1453	1151	79%	4.0
Alien Codebreaking	322	31	10%	3.23	59	16	27%	8.5
Alien Microwave	262	101	39%	0.00	134	96	72%	6.7
Alien Numbers	3058	1626	53%	0.00	1590	1459	92%	1.9
A List Game	11490	3469	30%	0.00	3348	2838	85%	2.8
All about that base	3420	1363	40%	0.00	1314	1114	85%	3.0
All Different Directions	1767	828	47%	0.00	786	705	90%	2.4
Allergy Test	661	170	26%	0.00	216	108	50%	8.0
All Friends	1177	224	19%	0.00	212	113	53%	8.7
All in the Family	176	39	22%	0.00	56	37	66%	5.4
All is Well	150	39	26%	0.03	37	32	86%	5.2
All Just A Dream	2947	782	27%	0.05	578	444	77%	5.3
All Kill	124	102	82%	0.00	58	51	88%	3.5
Alloys	958	341	36%	0.00	357	296	83%	3.9
All Pairs Shortest Path	14249	2745	19%	0.00	1743	1257	72%	5.6
Almost Perfect	13872	3116	22%	0.00	3183	2528	79%	3.4
Almost Union-Find	10485	1827	17%	0.02	1651	1006	61%	6.3
Alphabet	2860	1459	51%	0.00	1395	1181	85%	3.1
Alphabet Animals	8540	1573	18%	0.00	1389	991	71%	6.2
Alphabet Spam	11498	7175	62%	0.00	6094	5858	96%	1.4
Alternating Current	714	696	97%	0.00	123	120	98%	1.4 - 8.3
Alternative Anagram	272	85	31%	0.00	79	56	71%	7.3
Alternative Bracket Notation	240	104	43%	0.00	112	92	82%	5.4
Alto Singing	96	42	44%	0.00	43	40	93%	4.3
Altruistic Amphibians	573	158	28%	0.22	133	99	74%	5.0
Amalgamated Artichokes	5298	2377	45%	0.01	2098	1852	88%	2.7
Amanda Lounges	2023	599	30%	0.03	512	416	81%	5.3
A Mazing!	4077	1056	26%	0.09	415	309	74%	5.6
Amazing Adventures	527	145	28%	0.02	166	117	70%	6.4
Amazing Race	704	176	25%	0.29	155	119	77%	5.5
Ambiguous Result	301	70	23%	0.02	102	65	64%	7.0
Amsterdam Distance	2412	1205	50%	0.00	1222	1049	86%	2.6
A Multiplication Game	1372	564	41%	0.00	608	473	78%	4.2
Anagram Counting	4873	1952	40%	0.00	1894	1588	84%	3.1
Andrew the Ant	530	165	31%	0.05	171	134	78%	4.7
A New Adventure	1556	236	15%	0.00	231	166	72%	5.8
A New Alphabet	14566	6583	45%	0.00	6166	5672	92%	1.9
An I for an Eye	1376	401	29%	0.00	465	344	74%	4.9
Animal Classification	1697	397	23%	0.03	338	226	67%	6.9
An Industrial Spy	2509	1325	53%	0.02	1064	932	88%	2.9
Annoyed Coworkers	1355	413	30%	0.02	261	234	90%	3.2
Another Brick in the Wall	4624	2327	50%	0.00	2269	2062	91%	2.1
Another Candies	10940	3052	28%	0.00	3079	2581	84%	2.7
Another Coin Weighing Puzzle	791	220	28%	0.00	148	120	81%	5.8